894447480372497 has 2 divisors, whose sum is σ = 894447480372498. Its totient is φ = 894447480372496.

The previous prime is 894447480372421. The next prime is 894447480372529. The reversal of 894447480372497 is 794273084744498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 812760572209936 + 81686908162561 = 28508956^2 + 9038081^2 .

It is a cyclic number.

It is not a de Polignac number, because 894447480372497 - 2²⁴ = 894447463595281 is a prime.

It is not a weakly prime, because it can be changed into another prime (894447480372697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447223740186248 + 447223740186249.

It is an arithmetic number, because the mean of its divisors is an integer number (447223740186249).

Almost surely, 2^{894447480372497} is an apocalyptic number.

It is an amenable number.

894447480372497 is a deficient number, since it is larger than the sum of its proper divisors (1).

894447480372497 is an equidigital number, since it uses as much as digits as its factorization.

894447480372497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10924720128, while the sum is 80.

The spelling of 894447480372497 in words is "eight hundred ninety-four trillion, four hundred forty-seven billion, four hundred eighty million, three hundred seventy-two thousand, four hundred ninety-seven".